This is a submission for the Hacktoberfest Open-Source AI Challenge: Week 2 What I Built RepoBuddy turns an unfamiliar GitHub repo into something you can ask questions of. Paste a repo URL. RepoBuddy shallow-clones it, maps it into a knowledge graph with Graphify , and lets you ask Gemma 4 things like: "Where do I start?" "Explain the architecture" "Suggest a good first contribution" The answers name real files, because Gemma only sees the slice of ...